Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1992-04-14
1994-05-17
Mullen, Thomas
Communications: electrical
Condition responsive indicating system
Specific condition
137 681, 137557, 200 6108, G08B 2100, F16K 1714, H01H 8500
Patent
active
053131940
ABSTRACT:
An integral burst sensing disk assembly wherein a disk forms an integral part of the burst sensing circuit. The improvement of the instant invention comprises using a rupture disk to form a complete circuit between a wire connected to the burst membrane portion of the disk, through the disk to another wire connected to the outer surface of the disk. When the disk bursts to relieve an over-pressure situation, the circuit is broken and a signal sent to indicate that the disk has burst.
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patent: 3936621 (1976-02-01), Palin et al.
patent: 4270560 (1981-06-01), Kearney
patent: 4408194 (1983-10-01), Thompson
patent: 4978947 (1990-12-01), Finnegan
patent: 5155471 (1992-10-01), Ellis et al.
Sigri brochure, "Sigri Combats Corrosion", p. 18, Jul. 1987.
Kearney Industries catalog excerpt "Kelonite Graphite Burst Discs".
Carbone, "Bonite Impervious Graphite Rupture Disks:, catalog excerpt".
Elfab-Hughes, catalog excerpt Oseco, "Burst Disk Alarm System".
Carborundum, "Falls Impervite Impervious Graphite Rapture Disks", catalog excerpt.
"B.D.I. Alarm System For Rupture Discs", catalog excerpt of the Continental Disc Corporation, Mar. 1983.
"Special Grafsert With Burst Disc Indicator (BDI) Installation Instructions.", Continental Disc Corporation.
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